The automotive air conditioning manifold gauges are leading for diagnosing problems with the process. The gauges demonstrate the country of charge and the pressures existing within the operation at antithetic stages, indicating particular problems. Be aware that not later Correct procedure or deviating can be hazardous. There is hovering coercion ad hoc in the air conditioning step and unintentional Proceeds could grounds injury. There are two gauges--one gauge and edge is glum and the other is burgundy. The despondent side is the suction or low side and the cerise is the high-pressure side.
Instructions
1. This is where you will attach the high side or red line on the gauges.3. Locate the larger line coming off the air compressor and leading toward the firewall. Look for the blue-capped, larger Schrader valve. It Testament animation fini the firewall to the evaporator and exit in a larger tubing called the low side for low pressure or suction side. If there is no dryer, the low side will have an accumulator between it and the compressor.
2. Look for the smaller line where it comes out of the condenser and follow it until you see a red-capped Schrader valve. Shut the engine off and hoist the hood. Cast for the lines forthcoming off the air compressor. The inconsiderable column is the hovering impulse wrinkle and Testament vanguard from the compressor to the condenser which is complementary to a radiator and sits in front of the vehicle radiator. The dwarf high-side line will reimburse from the condenser and animation to a dryer on some cars or straight to the firewall on others.
This can be found on the line itself or on the accumulator. Normally you can find it on the side of the accumulator. This is the attachment for the low side.
4. Make sure the valves are closed on both gauges and that the valve on the tank is closed besides.
5. Start the car and turn on the air conditioning system. Put it on recirculate with the fan on high. A fully charged system will read between 25 to 35 pounds of pressure on the blue (low) side and between 185 and 240 on the high (red) side, depending on the temperature. The lower the temperature, the lower the readings, and the higher the temperature, the higher the readings.
